ADS5292
- Maximum Sample Rate: 80 MSPS/12-Bit
- High Signal-to-Noise Ratio
- 70-dBFS SNR at 5 MHz/80 MSPS
- 71.5-dBFS SNR at 5 MHz/80 MSPS and Decimation Filter = 2
- 85-dBc SFDR at 5 MHz/80 MSPS
- Low Power Consumption
- 48 mW/CH at 50 MSPS
- 54 mW/CH at 65 MSPS
- 66 mW/CH at 80 MSPS (2 LVDS Wire Per Channel)
- Digital Processing Block
- Programmable FIR Decimation Filter and Oversampling to Minimize
Harmonic Interference - Programmable IIR High Pass Filter to Minimize DC Offset
- Programmable Digital Gain: 0 dB to 12 dB
- 2- or 4-=Channel Averaging
- Programmable FIR Decimation Filter and Oversampling to Minimize
- Flexible Serialized LVDS Outputs:
- One or Two wires of LVDS Output Lines per Channel Depending on ADC
Sampling Rate - Programmable Mapping Between ADC Input Channels and LVDS Output
Pins-Eases Board Design - Variety of Test Patterns to Verify Data Capture by
FPGA/Receiver
- One or Two wires of LVDS Output Lines per Channel Depending on ADC
- Internal and External References
- 1.8V Operation for Low Power Consumption
- Low-Frequency Noise Suppression
- Recovery From 6-dB Overload within 1 Clock Cycle
- Package: 12-mm × 12-mm 80-Pin QFP
Using CMOS process technology and innovative circuit techniques, the ADS5292 is a low power 80MSPS 8-Channel ADC. Low power consumption, high SNR, low SFDR, and consistent overload recovery allow users to design high performance systems.
The ADS5292 has a digital processing block that integrates several commonly used digital functions for improving system performance. It includes a digital filter module that has built-in decimation filters (with low-pass, high-pass and band-pass characteristics). The decimation rate is also programmable (by 2, by 4, or by 8). This makes it useful for narrow-band applications, where the filters can be used conveniently to improve SNR and knock-off harmonics, while at the same time reducing the output data rate. The device includes an averaging mode where two channels (or even four channels) can be averaged to improve SNR.
Serial LVDS outputs reduce the number of interface lines and enable the highest system integration. The digital data from each channel ADC can be output over one or two wires of LVDS output lines depending on the ADC sampling rate. This 2-wire interface helps keep the serial data rate low, allowing low cost FPGA based receivers to be used even at high sample rate. A unique feature is the programmable mapping module that allows flexible mapping between the input channels and the LVDS output pins. This helps greatly reduce the complexity of LVDS output routing and can potentially result in cheaper system boards by reducing the number of PCB layers.
The device integrates an internal reference trimmed to accurately match across devices. Best performance is expected to be achieved through the internal reference mode. The device can be driven with external references as well.
The device is available in a 12 mm × 12 mm 80-pin QFP. It is specified over a –40°C to 85°C operating temperature range. ADS5292 is completely pin-to-pin and register compatible to ADS5294.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | Octal Channel 12-Bit, 80 MSPS and Low-Power ADC datasheet (Rev. B) | 2012. 7. 25 | ||
| 애플리케이션 노트 | Design Considerations for Avoiding Timing Errors during High-Speed ADC, LVDS Dat (Rev. A) | 2015. 5. 22 | |||
| 애플리케이션 노트 | Why Use Oversampling when Undersampling Can Do the Job? (Rev. A) | 2013. 7. 19 | |||
| 애플리케이션 노트 | Understanding Serial LVDS Capture in High-Speed ADCs | 2013. 7. 10 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
ADS5292EVM — ADS5292 평가 모듈
ADS5292 평가 모듈(EVM)은 다양한 클록 및 입력 조건에서 ADS5292를 테스트할 수 있는 유연한 환경을 제공합니다. 이 EVM을 사용하면 자체 필터를 설계하고, EVM에 해당 부품을 채우고, EVM 자체에서 성능을 확인할 수 있습니다.
ADS5292EVM 평가를 위해 TSW1400EVM(구형)이 필요합니다. TSW1400EVM이 이미 있는 경우가 아니면 ADS5292EVM을 구매하지 않는 것이 좋습니다.
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
아날로그 엔지니어의 계산기는 아날로그 회로 설계 엔지니어가 정기적으로 사용하는 많은 반복 계산의 속도를 높이도록 설계되었습니다. 이 PC 기반 툴은 피드백 저항을 사용한 연산 증폭기 게인 설정부터 아날로그-디지털 컨버터(ADC) 드라이브 버퍼 회로 안정화를 위한 적절한 회로 설계 요소 선택에 이르기까지 다양한 일반적인 계산 목록이 포함된 그래픽 인터페이스를 제공합니다.
이 계산기는 독립 실행형 툴로 유용할 뿐만 아니라 아날로그 엔지니어의 포켓 레퍼런스에 설명된 개념과도 잘 어울립니다.
SBAC119 — TIGAR (Texas Instruments Graphical Evaluation of ADC Response Tool)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HTQFP (PFP) | 80 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.